CLAIRÉ Lite is the budget-friendly option for smart indoor environment monitoring – tracking CO₂, VOC, temperature, and humidity, without the dedicated PM2.5 and PM10 sensors of the full CLAIRÉ. Matter over Thread brings it all into your smart-home automations.
Your home's data can stay at home. Build local smart-home automations with Home Assistant and hAP be³ Media – without sending every reading to a server on the other side of the world.

Need particle monitoring too?
Choose the full CLAIRÉ with dedicated PM2.5 and PM10 detection!
It's surprisingly difficult to judge ventilation by feel. Cracking a window can make a room feel fresher without telling you how much CO₂ remains. CLAIRÉ Lite replaces the guesswork with a number. Open the window and watch it fall. Close it when you're satisfied.
Consider this: you take around 20 000 breaths every day. Better input, better output: deal with the air quality in your home, and pretty soon you might notice better sleep & focus, more energy – as your lungs finally get the fresh air you thought they were getting all along!
No smart home required. The 2" colour display puts the readings right in front of you, with selectable views and colour-coded warnings when the air takes a turn.

* Illustrative example. Different activities affect specific air-quality measurements in various ways.
Knowing when to open a window is useful enough. But CLAIRÉ Lite is also a Matter over Thread device. Pair it with a compatible smart-home system and its measurements can become inputs for automations.
CO₂ is getting high?
Turn up compatible ventilation.
Air quality deteriorates rapidly?
Send a notification, for example, over the phone, e-mail, SMS, light or through custom sound signals in the affected rooms.
Conditions return to normal?
Turn the ventilation back down – better your wallet and for the planet!

With a maximum power consumption of less than 1 W, CLAIRÉ Lite can easily run from a USB powerbank or MikroTik GPOE-USB – handy when you want to check the air somewhere without a convenient power outlet.
Sounds like a lot of setup? It doesn’t have to be. WinBox 4 introduces simple one-click container setup – choose Home Assistant, get it running on hAP be³ Media, and start building the home of your dreams!